[USN-2896-1] Libgcrypt vulnerability

Marc Deslauriers marc.deslauriers at canonical.com
Mon Feb 15 19:27:18 UTC 2016

Ubuntu Security Notice USN-2896-1
February 15, 2016

libgcrypt11, libgcrypt20 vulnerability

A security issue affects these releases of Ubuntu and its derivatives:

- Ubuntu 15.10
- Ubuntu 14.04 LTS
- Ubuntu 12.04 LTS


Libgcrypt could be made to expose sensitive information.

Software Description:
- libgcrypt20: LGPL Crypto library
- libgcrypt11: LGPL Crypto library


Daniel Genkin, Lev Pachmanov, Itamar Pipman and Eran Tromer discovered
that Libgcrypt was susceptible to an attack via physical side channels. A
local attacker could use this attack to possibly recover private keys.

Update instructions:

The problem can be corrected by updating your system to the following
package versions:

Ubuntu 15.10:
  libgcrypt20                     1.6.3-2ubuntu1.1

Ubuntu 14.04 LTS:
  libgcrypt11                     1.5.3-2ubuntu4.3

Ubuntu 12.04 LTS:
  libgcrypt11                     1.5.0-3ubuntu0.5

In general, a standard system update will make all the necessary changes.


Package Information:

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